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An advertising agency is hired to introduce a new product. The agency finds that after its campaign 66% of all consumers are familiar with the product. We ask 10 randomly selected customers whether or not they are familiar with the product. (a) Is this a binomial experiment? Explain how you know. (b) Use the correct formula to find the probability that, out of 10 customers, exactly 5 are familiar with the product. Show your calculations or explain how you found the probability.
An article contained the following observations on degree of polymerization for paper specimens for which viscosity times concentration fell in a certain middle range.
Find out the test statistic P-value, and critical value, and state the final conclusion. The mean IQ score of statistic professors is less than 120. Sample data: n = 46. Suppose that = 17, and the significance level is = 0.05.
Suppose it is known that if you offer free samples o a product, at least 52% of adults are more likely to buy the product. You interview a random sample of 50 adults.
What is the total amount spent on consumer goods?
The variance of the return per share is 4 for stock 1 and 100 for stock 2. The covariance of the return between the two stocks is 5 per share. Use the total variance of the investment as investment risk.
Which of the following is true regarding ANOVA?
A sample of 84 golfers showed that their average score on a particular golf course was 89.05 with a standard deviation of 3.47.
Construct a 95 percent confidence interval for the population proportion of positive drug tests. Why may you assume that this is a normal distribution?
The quality control engineer for a furniture manufacturer is interested in the mean amount of force necessary to produce cracks in stressed oak furniture.
Suppose that the population of heights of male college students is approximately normally distributed with mean m of 69.09 inches and standard deviation s of 4.71 inches.
Solve the differential equation, 12y=by-4y' writing the solution as y as a function of x (isolating y).
Looking for a good original (yet cited) response to this definition. And if you can describe two common ones with an example for each that would be great.
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